Product Name: Tetraethylammonium Hexafluorophosphate
Other Names: TEAPF6
Recommended Uses: Electrochemical research, analytical applications, battery electrolytes
Manufacturer's Details: Supplier information provided on request
Emergency Contact: Refer to local poison control center or company emergency number
CAS Number: 429-41-4
UN Number: Not assigned for pure chemical, check product mixture
Synonyms: TEAPF6
GHS Classification: Acute toxicity (Oral) – Category 4, Eye damage/irritation – Category 2A, Skin irritation – Category 2, Specific target organ toxicity (single exposure) – Category 3
Hazard Statements: Harmful if swallowed, causes skin and eye irritation, may cause respiratory irritation
Signal Word: Warning
Pictograms: Exclamation mark
Precautionary Statements: Avoid dust generation, avoid breathing dust, wash skin thoroughly after handling, use only outdoors or in well-ventilated area
Potential Health Effects: Inhalation may provoke coughing and throat irritation; contact with eyes or skin produces redness and discomfort; ingestion leads to nausea and abdominal pain
Chemical Formula: (C2H5)4N+ PF6−
Main Constituents: Tetraethylammonium Hexafluorophosphate: 99% w/w minimum
Impurities: Less than 1%, can contain traces of related ammonium or phosphate compounds
Molecular Weight: 259.22 g/mol
General Advice: Move person away from exposure source. Seek immediate medical attention for significant symptoms.
Inhalation: Remove to fresh air, support breathing as needed. Consult medical personnel if symptoms appear.
Skin Contact: Wash affected area with soap and plenty of water for several minutes. Remove contaminated clothing.
Eye Contact: Rinse cautiously with water for at least 15 minutes, lifting eyelids as possible. If irritation persists, seek medical evaluation.
Ingestion: If swallowed, rinse mouth. Do not induce vomiting. Drink water if conscious, monitor for nausea or other symptoms, and make contact with poison control.
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam, or water spray in small quantities
Unsuitable Extinguishing Media: Direct water stream may spread material
Special Hazards: In case of thermal decomposition, hazardous and irritating gases (like hydrogen fluoride, nitrogen oxides, and phosphorus oxides) may release
Advice for Firefighters: Wear full protective gear and self-contained breathing apparatus whenever entering area with smoke or fumes.
Fire/Explosion Risk: Dust clouds can present ignition risk if exposed to sparks or static electricity in confined spaces.
Personal Precautions: Eliminate ignition sources, ventilate area, and wear appropriate PPE: gloves, goggles, lab coat, particulate mask
Environmental Precautions: Prevent further leakage or spillage if safe. Stop entry into drains, surface water, or soil
Methods for Cleanup: Use non-sparking tools to collect spilled powder, shovel into suitable, labeled containers for disposal. Wash area with soap and water to minimize residues.
Decontamination Recommendations: Confine spill, absorb with inert dry material (such as sand or vermiculite), collect and dispose as hazardous chemical waste.
Safe Handling: Handle with adequate ventilation, minimize dust, and keep away from flame, heat, sparks, and electrostatic discharge sources. Use in fume hood for bulk handling.
Hygiene Measures: Avoid eating, drinking, or smoking during handling. Wash hands thoroughly after handling substance.
Storage Requirements: Store in tightly closed, corrosion-resistant containers, in a cool, dry, and well-ventilated place away from moisture and incompatible materials such as acids or bases.
Other Precautions: Keep container upright and properly labeled. Don’t allow contact with skin, eyes, or clothing.
Workplace Exposure Limits: No specific limits set by OSHA or ACGIH for this compound; exercise caution and use general nuisance dust limits (10 mg/m³ total dust, 5 mg/m³ respirable fraction)
Engineering Controls: Work inside chemical fume hood or well-ventilated area. Eye wash station and safety shower located nearby.
Personal Protective Equipment: Chemical splash goggles, nitrile or neoprene gloves, long-sleeved lab coat. For larger-scale uses or where dust can form, use NIOSH-approved respirator.
Environmental Controls: Prevent chemical from entering sewers, surface waters, or ground during use or disposal.
Physical State: Solid, usually fine crystalline powder
Color: White to off-white
Odor: Odorless
Melting Point: 220–230°C (decomposes)
Boiling Point: Not applicable – decomposes before boiling
Solubility: Soluble in water, methanol, acetonitrile; limited in nonpolar solvents
Vapor Pressure: Very low at room temperature
Density: Approx. 1.42 g/cm³ at 25°C
pH (1% solution): Slightly acidic to neutral
Flash Point: Not determined
Partition coefficient (log Kow): Not determined
Chemical Stability: Stable at normal temperature and pressure, though reacts with moisture to release HF over time
Possibility of Hazardous Reactions: Risk of hazardous decomposition under extreme heat, generates toxic fluoride and phosphorous-containing compounds
Conditions to Avoid: Exposure to moisture, high temperatures, open flames, static electricity
Incompatible Materials: Water, acids, bases, strong oxidizers, strong reducing agents
Hazardous Decomposition Products: Hydrogen fluoride, phosphorus oxides, ammonia, tetraethylamine, nitrogen oxides
Exposure Routes: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Oral LD50 (rat) not specifically available; in vitro studies highlight moderate toxicity to mammalian cells
Irritation Potential: Irritant to eyes, skin, and respiratory system. Sensitization risk assumed low unless repeated contact.
Chronic Effects: Data on long-term effects limited; repeated exposure might affect liver and kidney function in animals
Other Health Hazards: Potentially releases hydrofluoric acid on hydrolysis, which is highly corrosive and toxic
Ecotoxicity: Data on environmental toxicity is scarce. Possible hazard to aquatic life based on similar quaternary ammonium compounds
Persistence and Degradability: May persist in environment; not rapidly biodegradable
Bioaccumulative Potential: Limited data, unlikely to bioaccumulate based on physicochemical properties
Mobility in Soil: Highly mobile, especially if spilled near water sources due to high solubility
Other Environmental Precautions: Avoid uncontrolled releases; restrict access to contaminated areas during cleanup
Waste Treatment Methods: Collect solid wastes and residues in suitable containers. Dispose using licensed hazardous waste contractor
Disposal of Contaminated Packaging: Triple-rinse containers. Dispose in accordance with federal, state, and local environmental control regulations
Precautions: Do not dump to drain, water courses, or environment. Label all waste with content and hazard category
UN Number: Not classified under main UN Dangerous Goods List
Transport Hazard Class: Not regulated for ground, sea, or air transport in pure form; check with carrier when transported in quantities or in mixtures with other regulated substances
Packing Group: Not assigned
Environmental Hazards: No significant hazards unless large spills; avoid releases
Special Precautions: Standard practices for laboratory chemicals – segregation from reactive compounds, clear labeling, secure containers during transport
Inventory Listings: US TSCA, Canadian DSL/NDSL – not individually listed, often regulated as part of research chemicals
Federal Regulations: Not specifically regulated by SARA, CERCLA, or RCRA
Other Regulations: Subject to safe work practices under OSHA Lab Standard and equivalent local and international lab safety guidelines
Labeling Requirements: GHS hazard pictograms and statements, proper chemical identification
Workplace Safety Documentation: SDS copies should remain accessible for all personnel who handle the chemical, and training on emergency procedures provided
